Rookie Oscar host Seth MacFarlane casually slung a string of zingers at some of Hollywood's biggest names, including a musical tribute to female frontal nudity in the movies, as he launched the Academy Awards show on a decisively edgy note. It's never been easy hosting what is cinema's biggest night. Comedians have both excelled and failed at setting the pace for an evening when most of Hollywood's biggest contenders are nervous. We've picked these 10 great moments to laugh with these hosts as they work the script to make their audience titter.Whoopi Goldberg's opening monologue at the 71st Academy Awards
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